summaryrefslogtreecommitdiff
path: root/thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h
diff options
context:
space:
mode:
authorRémi Verschelde <rverschelde@gmail.com>2018-01-13 14:01:53 +0100
committerRémi Verschelde <rverschelde@gmail.com>2018-01-13 14:08:45 +0100
commite12c89e8c9896b2e5cdd70dbd2d2acb449ff4b94 (patch)
treeaf68e434545e20c538f896e28b73f2db7d626edd /thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h
parent53c65ae7619ac9e80c89a321c70de64f3745e2aa (diff)
bullet: Streamline bundling, remove extraneous src/ folder
Document version and how to extract sources in thirdparty/README.md. Drop unnecessary CMake and Premake files. Simplify SCsub, drop unused one.
Diffstat (limited to 'thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h')
-rw-r--r--thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h902
1 files changed, 902 insertions, 0 deletions
diff --git a/thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h b/thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h
new file mode 100644
index 0000000000..e4237c2c57
--- /dev/null
+++ b/thirdparty/bullet/BulletCollision/Gimpact/gim_hash_table.h
@@ -0,0 +1,902 @@
+#ifndef GIM_HASH_TABLE_H_INCLUDED
+#define GIM_HASH_TABLE_H_INCLUDED
+/*! \file gim_trimesh_data.h
+\author Francisco Leon Najera
+*/
+/*
+-----------------------------------------------------------------------------
+This source file is part of GIMPACT Library.
+
+For the latest info, see http://gimpact.sourceforge.net/
+
+Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371.
+email: projectileman@yahoo.com
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of EITHER:
+ (1) The GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 2.1 of the License, or (at
+ your option) any later version. The text of the GNU Lesser
+ General Public License is included with this library in the
+ file GIMPACT-LICENSE-LGPL.TXT.
+ (2) The BSD-style license that is included with this library in
+ the file GIMPACT-LICENSE-BSD.TXT.
+ (3) The zlib/libpng license that is included with this library in
+ the file GIMPACT-LICENSE-ZLIB.TXT.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
+ GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details.
+
+-----------------------------------------------------------------------------
+*/
+
+#include "gim_radixsort.h"
+
+
+#define GIM_INVALID_HASH 0xffffffff //!< A very very high value
+#define GIM_DEFAULT_HASH_TABLE_SIZE 380
+#define GIM_DEFAULT_HASH_TABLE_NODE_SIZE 4
+#define GIM_HASH_TABLE_GROW_FACTOR 2
+
+#define GIM_MIN_RADIX_SORT_SIZE 860 //!< calibrated on a PIII
+
+template<typename T>
+struct GIM_HASH_TABLE_NODE
+{
+ GUINT m_key;
+ T m_data;
+ GIM_HASH_TABLE_NODE()
+ {
+ }
+
+ GIM_HASH_TABLE_NODE(const GIM_HASH_TABLE_NODE & value)
+ {
+ m_key = value.m_key;
+ m_data = value.m_data;
+ }
+
+ GIM_HASH_TABLE_NODE(GUINT key, const T & data)
+ {
+ m_key = key;
+ m_data = data;
+ }
+
+ bool operator <(const GIM_HASH_TABLE_NODE<T> & other) const
+ {
+ ///inverse order, further objects are first
+ if(m_key < other.m_key) return true;
+ return false;
+ }
+
+ bool operator >(const GIM_HASH_TABLE_NODE<T> & other) const
+ {
+ ///inverse order, further objects are first
+ if(m_key > other.m_key) return true;
+ return false;
+ }
+
+ bool operator ==(const GIM_HASH_TABLE_NODE<T> & other) const
+ {
+ ///inverse order, further objects are first
+ if(m_key == other.m_key) return true;
+ return false;
+ }
+};
+
+///Macro for getting the key
+class GIM_HASH_NODE_GET_KEY
+{
+public:
+ template<class T>
+ inline GUINT operator()( const T& a)
+ {
+ return a.m_key;
+ }
+};
+
+
+
+///Macro for comparing the key and the element
+class GIM_HASH_NODE_CMP_KEY_MACRO
+{
+public:
+ template<class T>
+ inline int operator() ( const T& a, GUINT key)
+ {
+ return ((int)(a.m_key - key));
+ }
+};
+
+///Macro for comparing Hash nodes
+class GIM_HASH_NODE_CMP_MACRO
+{
+public:
+ template<class T>
+ inline int operator() ( const T& a, const T& b )
+ {
+ return ((int)(a.m_key - b.m_key));
+ }
+};
+
+
+
+
+
+//! Sorting for hash table
+/*!
+switch automatically between quicksort and radixsort
+*/
+template<typename T>
+void gim_sort_hash_node_array(T * array, GUINT array_count)
+{
+ if(array_count<GIM_MIN_RADIX_SORT_SIZE)
+ {
+ gim_heap_sort(array,array_count,GIM_HASH_NODE_CMP_MACRO());
+ }
+ else
+ {
+ memcopy_elements_func cmpfunc;
+ gim_radix_sort(array,array_count,GIM_HASH_NODE_GET_KEY(),cmpfunc);
+ }
+}
+
+
+
+
+
+
+// Note: assumes long is at least 32 bits.
+#define GIM_NUM_PRIME 28
+
+static const GUINT gim_prime_list[GIM_NUM_PRIME] =
+{
+ 53ul, 97ul, 193ul, 389ul, 769ul,
+ 1543ul, 3079ul, 6151ul, 12289ul, 24593ul,
+ 49157ul, 98317ul, 196613ul, 393241ul, 786433ul,
+ 1572869ul, 3145739ul, 6291469ul, 12582917ul, 25165843ul,
+ 50331653ul, 100663319ul, 201326611ul, 402653189ul, 805306457ul,
+ 1610612741ul, 3221225473ul, 4294967291ul
+};
+
+inline GUINT gim_next_prime(GUINT number)
+{
+ //Find nearest upper prime
+ GUINT result_ind = 0;
+ gim_binary_search(gim_prime_list,0,(GIM_NUM_PRIME-2),number,result_ind);
+
+ // inv: result_ind < 28
+ return gim_prime_list[result_ind];
+}
+
+
+
+//! A compact hash table implementation
+/*!
+A memory aligned compact hash table that coud be treated as an array.
+It could be a simple sorted array without the overhead of the hash key bucked, or could
+be a formely hash table with an array of keys.
+You can use switch_to_hashtable() and switch_to_sorted_array for saving space or increase speed.
+</br>
+
+<ul>
+<li> if node_size = 0, then this container becomes a simple sorted array allocator. reserve_size is used for reserve memory in m_nodes.
+When the array size reaches the size equivalent to 'min_hash_table_size', then it becomes a hash table by calling check_for_switching_to_hashtable.
+<li> If node_size != 0, then this container becomes a hash table for ever
+</ul>
+
+*/
+template<class T>
+class gim_hash_table
+{
+protected:
+ typedef GIM_HASH_TABLE_NODE<T> _node_type;
+
+ //!The nodes
+ //array< _node_type, SuperAllocator<_node_type> > m_nodes;
+ gim_array< _node_type > m_nodes;
+ //SuperBufferedArray< _node_type > m_nodes;
+ bool m_sorted;
+
+ ///Hash table data management. The hash table has the indices to the corresponding m_nodes array
+ GUINT * m_hash_table;//!<
+ GUINT m_table_size;//!<
+ GUINT m_node_size;//!<
+ GUINT m_min_hash_table_size;
+
+
+
+ //! Returns the cell index
+ inline GUINT _find_cell(GUINT hashkey)
+ {
+ _node_type * nodesptr = m_nodes.pointer();
+ GUINT start_index = (hashkey%m_table_size)*m_node_size;
+ GUINT end_index = start_index + m_node_size;
+
+ while(start_index<end_index)
+ {
+ GUINT value = m_hash_table[start_index];
+ if(value != GIM_INVALID_HASH)
+ {
+ if(nodesptr[value].m_key == hashkey) return start_index;
+ }
+ start_index++;
+ }
+ return GIM_INVALID_HASH;
+ }
+
+ //! Find the avaliable cell for the hashkey, and return an existing cell if it has the same hash key
+ inline GUINT _find_avaliable_cell(GUINT hashkey)
+ {
+ _node_type * nodesptr = m_nodes.pointer();
+ GUINT avaliable_index = GIM_INVALID_HASH;
+ GUINT start_index = (hashkey%m_table_size)*m_node_size;
+ GUINT end_index = start_index + m_node_size;
+
+ while(start_index<end_index)
+ {
+ GUINT value = m_hash_table[start_index];
+ if(value == GIM_INVALID_HASH)
+ {
+ if(avaliable_index==GIM_INVALID_HASH)
+ {
+ avaliable_index = start_index;
+ }
+ }
+ else if(nodesptr[value].m_key == hashkey)
+ {
+ return start_index;
+ }
+ start_index++;
+ }
+ return avaliable_index;
+ }
+
+
+
+ //! reserves the memory for the hash table.
+ /*!
+ \pre hash table must be empty
+ \post reserves the memory for the hash table, an initializes all elements to GIM_INVALID_HASH.
+ */
+ inline void _reserve_table_memory(GUINT newtablesize)
+ {
+ if(newtablesize==0) return;
+ if(m_node_size==0) return;
+
+ //Get a Prime size
+
+ m_table_size = gim_next_prime(newtablesize);
+
+ GUINT datasize = m_table_size*m_node_size;
+ //Alloc the data buffer
+ m_hash_table = (GUINT *)gim_alloc(datasize*sizeof(GUINT));
+ }
+
+ inline void _invalidate_keys()
+ {
+ GUINT datasize = m_table_size*m_node_size;
+ for(GUINT i=0;i<datasize;i++)
+ {
+ m_hash_table[i] = GIM_INVALID_HASH;// invalidate keys
+ }
+ }
+
+ //! Clear all memory for the hash table
+ inline void _clear_table_memory()
+ {
+ if(m_hash_table==NULL) return;
+ gim_free(m_hash_table);
+ m_hash_table = NULL;
+ m_table_size = 0;
+ }
+
+ //! Invalidates the keys (Assigning GIM_INVALID_HASH to all) Reorders the hash keys
+ inline void _rehash()
+ {
+ _invalidate_keys();
+
+ _node_type * nodesptr = m_nodes.pointer();
+ for(GUINT i=0;i<(GUINT)m_nodes.size();i++)
+ {
+ GUINT nodekey = nodesptr[i].m_key;
+ if(nodekey != GIM_INVALID_HASH)
+ {
+ //Search for the avaliable cell in buffer
+ GUINT index = _find_avaliable_cell(nodekey);
+
+
+ if(m_hash_table[index]!=GIM_INVALID_HASH)
+ {//The new index is alreade used... discard this new incomming object, repeated key
+ btAssert(m_hash_table[index]==nodekey);
+ nodesptr[i].m_key = GIM_INVALID_HASH;
+ }
+ else
+ {
+ //;
+ //Assign the value for alloc
+ m_hash_table[index] = i;
+ }
+ }
+ }
+ }
+
+ //! Resize hash table indices
+ inline void _resize_table(GUINT newsize)
+ {
+ //Clear memory
+ _clear_table_memory();
+ //Alloc the data
+ _reserve_table_memory(newsize);
+ //Invalidate keys and rehash
+ _rehash();
+ }
+
+ //! Destroy hash table memory
+ inline void _destroy()
+ {
+ if(m_hash_table==NULL) return;
+ _clear_table_memory();
+ }
+
+ //! Finds an avaliable hash table cell, and resizes the table if there isn't space
+ inline GUINT _assign_hash_table_cell(GUINT hashkey)
+ {
+ GUINT cell_index = _find_avaliable_cell(hashkey);
+
+ if(cell_index==GIM_INVALID_HASH)
+ {
+ //rehashing
+ _resize_table(m_table_size+1);
+ GUINT cell_index = _find_avaliable_cell(hashkey);
+ btAssert(cell_index!=GIM_INVALID_HASH);
+ }
+ return cell_index;
+ }
+
+ //! erase by index in hash table
+ inline bool _erase_by_index_hash_table(GUINT index)
+ {
+ if(index >= m_nodes.size()) return false;
+ if(m_nodes[index].m_key != GIM_INVALID_HASH)
+ {
+ //Search for the avaliable cell in buffer
+ GUINT cell_index = _find_cell(m_nodes[index].m_key);
+
+ btAssert(cell_index!=GIM_INVALID_HASH);
+ btAssert(m_hash_table[cell_index]==index);
+
+ m_hash_table[cell_index] = GIM_INVALID_HASH;
+ }
+
+ return this->_erase_unsorted(index);
+ }
+
+ //! erase by key in hash table
+ inline bool _erase_hash_table(GUINT hashkey)
+ {
+ if(hashkey == GIM_INVALID_HASH) return false;
+
+ //Search for the avaliable cell in buffer
+ GUINT cell_index = _find_cell(hashkey);
+ if(cell_index ==GIM_INVALID_HASH) return false;
+
+ GUINT index = m_hash_table[cell_index];
+ m_hash_table[cell_index] = GIM_INVALID_HASH;
+
+ return this->_erase_unsorted(index);
+ }
+
+
+
+ //! insert an element in hash table
+ /*!
+ If the element exists, this won't insert the element
+ \return the index in the array of the existing element,or GIM_INVALID_HASH if the element has been inserted
+ If so, the element has been inserted at the last position of the array.
+ */
+ inline GUINT _insert_hash_table(GUINT hashkey, const T & value)
+ {
+ if(hashkey==GIM_INVALID_HASH)
+ {
+ //Insert anyway
+ _insert_unsorted(hashkey,value);
+ return GIM_INVALID_HASH;
+ }
+
+ GUINT cell_index = _assign_hash_table_cell(hashkey);
+
+ GUINT value_key = m_hash_table[cell_index];
+
+ if(value_key!= GIM_INVALID_HASH) return value_key;// Not overrited
+
+ m_hash_table[cell_index] = m_nodes.size();
+
+ _insert_unsorted(hashkey,value);
+ return GIM_INVALID_HASH;
+ }
+
+ //! insert an element in hash table.
+ /*!
+ If the element exists, this replaces the element.
+ \return the index in the array of the existing element,or GIM_INVALID_HASH if the element has been inserted
+ If so, the element has been inserted at the last position of the array.
+ */
+ inline GUINT _insert_hash_table_replace(GUINT hashkey, const T & value)
+ {
+ if(hashkey==GIM_INVALID_HASH)
+ {
+ //Insert anyway
+ _insert_unsorted(hashkey,value);
+ return GIM_INVALID_HASH;
+ }
+
+ GUINT cell_index = _assign_hash_table_cell(hashkey);
+
+ GUINT value_key = m_hash_table[cell_index];
+
+ if(value_key!= GIM_INVALID_HASH)
+ {//replaces the existing
+ m_nodes[value_key] = _node_type(hashkey,value);
+ return value_key;// index of the replaced element
+ }
+
+ m_hash_table[cell_index] = m_nodes.size();
+
+ _insert_unsorted(hashkey,value);
+ return GIM_INVALID_HASH;
+
+ }
+
+
+ ///Sorted array data management. The hash table has the indices to the corresponding m_nodes array
+ inline bool _erase_sorted(GUINT index)
+ {
+ if(index>=(GUINT)m_nodes.size()) return false;
+ m_nodes.erase_sorted(index);
+ if(m_nodes.size()<2) m_sorted = false;
+ return true;
+ }
+
+ //! faster, but unsorted
+ inline bool _erase_unsorted(GUINT index)
+ {
+ if(index>=m_nodes.size()) return false;
+
+ GUINT lastindex = m_nodes.size()-1;
+ if(index<lastindex && m_hash_table!=0)
+ {
+ GUINT hashkey = m_nodes[lastindex].m_key;
+ if(hashkey!=GIM_INVALID_HASH)
+ {
+ //update the new position of the last element
+ GUINT cell_index = _find_cell(hashkey);
+ btAssert(cell_index!=GIM_INVALID_HASH);
+ //new position of the last element which will be swaped
+ m_hash_table[cell_index] = index;
+ }
+ }
+ m_nodes.erase(index);
+ m_sorted = false;
+ return true;
+ }
+
+ //! Insert in position ordered
+ /*!
+ Also checks if it is needed to transform this container to a hash table, by calling check_for_switching_to_hashtable
+ */
+ inline void _insert_in_pos(GUINT hashkey, const T & value, GUINT pos)
+ {
+ m_nodes.insert(_node_type(hashkey,value),pos);
+ this->check_for_switching_to_hashtable();
+ }
+
+ //! Insert an element in an ordered array
+ inline GUINT _insert_sorted(GUINT hashkey, const T & value)
+ {
+ if(hashkey==GIM_INVALID_HASH || size()==0)
+ {
+ m_nodes.push_back(_node_type(hashkey,value));
+ return GIM_INVALID_HASH;
+ }
+ //Insert at last position
+ //Sort element
+
+
+ GUINT result_ind=0;
+ GUINT last_index = m_nodes.size()-1;
+ _node_type * ptr = m_nodes.pointer();
+
+ bool found = gim_binary_search_ex(
+ ptr,0,last_index,result_ind,hashkey,GIM_HASH_NODE_CMP_KEY_MACRO());
+
+
+ //Insert before found index
+ if(found)
+ {
+ return result_ind;
+ }
+ else
+ {
+ _insert_in_pos(hashkey, value, result_ind);
+ }
+ return GIM_INVALID_HASH;
+ }
+
+ inline GUINT _insert_sorted_replace(GUINT hashkey, const T & value)
+ {
+ if(hashkey==GIM_INVALID_HASH || size()==0)
+ {
+ m_nodes.push_back(_node_type(hashkey,value));
+ return GIM_INVALID_HASH;
+ }
+ //Insert at last position
+ //Sort element
+ GUINT result_ind;
+ GUINT last_index = m_nodes.size()-1;
+ _node_type * ptr = m_nodes.pointer();
+
+ bool found = gim_binary_search_ex(
+ ptr,0,last_index,result_ind,hashkey,GIM_HASH_NODE_CMP_KEY_MACRO());
+
+ //Insert before found index
+ if(found)
+ {
+ m_nodes[result_ind] = _node_type(hashkey,value);
+ }
+ else
+ {
+ _insert_in_pos(hashkey, value, result_ind);
+ }
+ return result_ind;
+ }
+
+ //! Fast insertion in m_nodes array
+ inline GUINT _insert_unsorted(GUINT hashkey, const T & value)
+ {
+ m_nodes.push_back(_node_type(hashkey,value));
+ m_sorted = false;
+ return GIM_INVALID_HASH;
+ }
+
+
+
+public:
+
+ /*!
+ <li> if node_size = 0, then this container becomes a simple sorted array allocator. reserve_size is used for reserve memory in m_nodes.
+ When the array size reaches the size equivalent to 'min_hash_table_size', then it becomes a hash table by calling check_for_switching_to_hashtable.
+ <li> If node_size != 0, then this container becomes a hash table for ever
+ </ul>
+ */
+ gim_hash_table(GUINT reserve_size = GIM_DEFAULT_HASH_TABLE_SIZE,
+ GUINT node_size = GIM_DEFAULT_HASH_TABLE_NODE_SIZE,
+ GUINT min_hash_table_size = GIM_INVALID_HASH)
+ {
+ m_hash_table = NULL;
+ m_table_size = 0;
+ m_sorted = false;
+ m_node_size = node_size;
+ m_min_hash_table_size = min_hash_table_size;
+
+ if(m_node_size!=0)
+ {
+ if(reserve_size!=0)
+ {
+ m_nodes.reserve(reserve_size);
+ _reserve_table_memory(reserve_size);
+ _invalidate_keys();
+ }
+ else
+ {
+ m_nodes.reserve(GIM_DEFAULT_HASH_TABLE_SIZE);
+ _reserve_table_memory(GIM_DEFAULT_HASH_TABLE_SIZE);
+ _invalidate_keys();
+ }
+ }
+ else if(reserve_size!=0)
+ {
+ m_nodes.reserve(reserve_size);
+ }
+
+ }
+
+ ~gim_hash_table()
+ {
+ _destroy();
+ }
+
+ inline bool is_hash_table()
+ {
+ if(m_hash_table) return true;
+ return false;
+ }
+
+ inline bool is_sorted()
+ {
+ if(size()<2) return true;
+ return m_sorted;
+ }
+
+ bool sort()
+ {
+ if(is_sorted()) return true;
+ if(m_nodes.size()<2) return false;
+
+
+ _node_type * ptr = m_nodes.pointer();
+ GUINT siz = m_nodes.size();
+ gim_sort_hash_node_array(ptr,siz);
+ m_sorted=true;
+
+
+
+ if(m_hash_table)
+ {
+ _rehash();
+ }
+ return true;
+ }
+
+ bool switch_to_hashtable()
+ {
+ if(m_hash_table) return false;
+ if(m_node_size==0) m_node_size = GIM_DEFAULT_HASH_TABLE_NODE_SIZE;
+ if(m_nodes.size()<GIM_DEFAULT_HASH_TABLE_SIZE)
+ {
+ _resize_table(GIM_DEFAULT_HASH_TABLE_SIZE);
+ }
+ else
+ {
+ _resize_table(m_nodes.size()+1);
+ }
+
+ return true;
+ }
+
+ bool switch_to_sorted_array()
+ {
+ if(m_hash_table==NULL) return true;
+ _clear_table_memory();
+ return sort();
+ }
+
+ //!If the container reaches the
+ bool check_for_switching_to_hashtable()
+ {
+ if(this->m_hash_table) return true;
+
+ if(!(m_nodes.size()< m_min_hash_table_size))
+ {
+ if(m_node_size == 0)
+ {
+ m_node_size = GIM_DEFAULT_HASH_TABLE_NODE_SIZE;
+ }
+
+ _resize_table(m_nodes.size()+1);
+ return true;
+ }
+ return false;
+ }
+
+ inline void set_sorted(bool value)
+ {
+ m_sorted = value;
+ }
+
+ //! Retrieves the amount of keys.
+ inline GUINT size() const
+ {
+ return m_nodes.size();
+ }
+
+ //! Retrieves the hash key.
+ inline GUINT get_key(GUINT index) const
+ {
+ return m_nodes[index].m_key;
+ }
+
+ //! Retrieves the value by index
+ /*!
+ */
+ inline T * get_value_by_index(GUINT index)
+ {
+ return &m_nodes[index].m_data;
+ }
+
+ inline const T& operator[](GUINT index) const
+ {
+ return m_nodes[index].m_data;
+ }
+
+ inline T& operator[](GUINT index)
+ {
+ return m_nodes[index].m_data;
+ }
+
+ //! Finds the index of the element with the key
+ /*!
+ \return the index in the array of the existing element,or GIM_INVALID_HASH if the element has been inserted
+ If so, the element has been inserted at the last position of the array.
+ */
+ inline GUINT find(GUINT hashkey)
+ {
+ if(m_hash_table)
+ {
+ GUINT cell_index = _find_cell(hashkey);
+ if(cell_index==GIM_INVALID_HASH) return GIM_INVALID_HASH;
+ return m_hash_table[cell_index];
+ }
+ GUINT last_index = m_nodes.size();
+ if(last_index<2)
+ {
+ if(last_index==0) return GIM_INVALID_HASH;
+ if(m_nodes[0].m_key == hashkey) return 0;
+ return GIM_INVALID_HASH;
+ }
+ else if(m_sorted)
+ {
+ //Binary search
+ GUINT result_ind = 0;
+ last_index--;
+ _node_type * ptr = m_nodes.pointer();
+
+ bool found = gim_binary_search_ex(ptr,0,last_index,result_ind,hashkey,GIM_HASH_NODE_CMP_KEY_MACRO());
+
+
+ if(found) return result_ind;
+ }
+ return GIM_INVALID_HASH;
+ }
+
+ //! Retrieves the value associated with the index
+ /*!
+ \return the found element, or null
+ */
+ inline T * get_value(GUINT hashkey)
+ {
+ GUINT index = find(hashkey);
+ if(index == GIM_INVALID_HASH) return NULL;
+ return &m_nodes[index].m_data;
+ }
+
+
+ /*!
+ */
+ inline bool erase_by_index(GUINT index)
+ {
+ if(index > m_nodes.size()) return false;
+
+ if(m_hash_table == NULL)
+ {
+ if(is_sorted())
+ {
+ return this->_erase_sorted(index);
+ }
+ else
+ {
+ return this->_erase_unsorted(index);
+ }
+ }
+ else
+ {
+ return this->_erase_by_index_hash_table(index);
+ }
+ return false;
+ }
+
+
+
+ inline bool erase_by_index_unsorted(GUINT index)
+ {
+ if(index > m_nodes.size()) return false;
+
+ if(m_hash_table == NULL)
+ {
+ return this->_erase_unsorted(index);
+ }
+ else
+ {
+ return this->_erase_by_index_hash_table(index);
+ }
+ return false;
+ }
+
+
+
+ /*!
+
+ */
+ inline bool erase_by_key(GUINT hashkey)
+ {
+ if(size()==0) return false;
+
+ if(m_hash_table)
+ {
+ return this->_erase_hash_table(hashkey);
+ }
+ //Binary search
+
+ if(is_sorted()==false) return false;
+
+ GUINT result_ind = find(hashkey);
+ if(result_ind!= GIM_INVALID_HASH)
+ {
+ return this->_erase_sorted(result_ind);
+ }
+ return false;
+ }
+
+ void clear()
+ {
+ m_nodes.clear();
+
+ if(m_hash_table==NULL) return;
+ GUINT datasize = m_table_size*m_node_size;
+ //Initialize the hashkeys.
+ GUINT i;
+ for(i=0;i<datasize;i++)
+ {
+ m_hash_table[i] = GIM_INVALID_HASH;// invalidate keys
+ }
+ m_sorted = false;
+ }
+
+ //! Insert an element into the hash
+ /*!
+ \return If GIM_INVALID_HASH, the object has been inserted succesfully. Else it returns the position
+ of the existing element.
+ */
+ inline GUINT insert(GUINT hashkey, const T & element)
+ {
+ if(m_hash_table)
+ {
+ return this->_insert_hash_table(hashkey,element);
+ }
+ if(this->is_sorted())
+ {
+ return this->_insert_sorted(hashkey,element);
+ }
+ return this->_insert_unsorted(hashkey,element);
+ }
+
+ //! Insert an element into the hash, and could overrite an existing object with the same hash.
+ /*!
+ \return If GIM_INVALID_HASH, the object has been inserted succesfully. Else it returns the position
+ of the replaced element.
+ */
+ inline GUINT insert_override(GUINT hashkey, const T & element)
+ {
+ if(m_hash_table)
+ {
+ return this->_insert_hash_table_replace(hashkey,element);
+ }
+ if(this->is_sorted())
+ {
+ return this->_insert_sorted_replace(hashkey,element);
+ }
+ this->_insert_unsorted(hashkey,element);
+ return m_nodes.size();
+ }
+
+
+
+ //! Insert an element into the hash,But if this container is a sorted array, this inserts it unsorted
+ /*!
+ */
+ inline GUINT insert_unsorted(GUINT hashkey,const T & element)
+ {
+ if(m_hash_table)
+ {
+ return this->_insert_hash_table(hashkey,element);
+ }
+ return this->_insert_unsorted(hashkey,element);
+ }
+
+
+};
+
+
+
+#endif // GIM_CONTAINERS_H_INCLUDED